hair accessory/hair clip/hairgrip Features and usage:materialvelcro hair roller is made of PVC&Nylon.usagefor accessorize of the hair,fixed the bangsspecificationSpecifications: 16mm,20mm,25mm,30mm,38mm, All specification is available according to your requirement.SGS reportAll products have passed ROHS&SGS, in line with the European environmental protection standards.FeaturesVelcro hair rollers is quite hot sale on current market,it's Recycle used and durable.If you are interested in any of our products.Please feel free to contract us for more information.We look forward to cooperating with you on the basis of our mutual benefits in the near future.